海东地区鼠虫害及毒草分布调查

Investigaton Report of Rodents Poisonous Plants in Haitong Area

经普查 ,海东地区草场害鼠主要为高原鼢鼠、高原鼠兔和田鼠 ,分布在海拔 2 2 0 0— 42 0 0 m的山地草原 ,高山草甸、山地草甸等阳坡、阴坡和农田。发生面积 65 3 2 3 .6hu ,危害面积 1 9792 7hu。毒草主要为黄花棘豆、兰花棘豆、狼毒、醉马草等 ,分布在海拔 1 65 0 m— 3 80 0 m的山地草原类草地上。

From the investigation,the rodents are mainly aemyospalax baileyi,ochotona curzoni,et al. They are distributed at mountainous pasture, high land pasture, mountainous meadow pasture at 2200-4200m above sea level. There are 65323.6ha rodents area, and damage area is 197927ha. Poisonous plants mainly are oxytropis ochrocepgala, O.cocerulea, stellera chamaejhasme, achnathenum inebrians. They are distributed at mountainous pasture. Damage area of oxytropis is196609.6ha, damage area of stellera chamaejhasme is 46559.8ha.